Update legacy monitors to the latest runtime versions
New Relic is ending support for older runtimes in 2026. To simplify migrating synthetic monitors to the latest supported runtimes, we auto-upgraded every monitor that didn't require your action. Use the runtime upgrade tool to view the remaining monitors that still need your attention.
Prerequisites
Before you start upgrading monitors, ensure you meet the following requirements:
Bulk runtime upgrade permission: Required to apply bulk updates through the UI. Product admins have this permission by default. You can also add it to custom roles.
AI entitlements (Fix with AI only): Requires the nrai_ccu or nrai_discount_usage entitlement. FedRAMP accounts are blocked from this experience. Contact your New Relic account team to enable entitlements.
Upgrade your remaining monitors
For each monitor that requires attention, you can choose one of two paths:
Use the Fix manually option to write and edit your monitor scripts rather than relying on AI generation. To update a monitor manually:
Go to one.newrelic.com > Synthetic Monitoring > Runtime Upgrades.
Locate the monitor and click Fix manually.
In the Fix script manually window, update your script code for the new runtime environment.
Click Close and start validation. The monitor moves to the Monitors we're validating table while the system validates the updated script.
Note
If validation fails, click ⋯ next to the monitor, select Fix manually from the menu, update the script, and click Close and start validation again.
Once validation is successful and the status shows as Fixed, click the Ready to update tab.
Select the checkbox next to the validated monitor, and click Upgrade selected.
Once finished, a confirmation notification appears and the monitor moves to the Updated tab where you can verify the successful upgrade.
Use the Fix with AI option to let New Relic AI (NRAI) generate an updated script for you. The AI-assisted script generation is mainly geared toward fixing timeout errors incurred during runtime upgrades. For other error types, the script itself likely needs changes that you should make manually.
To update a monitor using AI:
Go to one.newrelic.com > Synthetic Monitoring > Runtime Upgrades.
Locate the monitor and click Fix with AI.
Review the AI-suggested script. To view the specific changes made to your original code, click Show comparison to open a side-by-side diff view.
Click Continue to validation. The system temporarily places the monitor in a validation state to test the new script and ensure it executes without errors.
Once the script is validated, click the Ready to update tab.
Select the checkbox next to the validated monitor, and click Upgrade selected.
Once finished, a confirmation notification appears and the monitor moves to the Updated tab where you can verify the successful upgrade.
You can run multiple upgrades at once, which allows you to work on several monitors in parallel without waiting for the system to finish validating each script.